Answer:
x = 105
y = 64
Step-by-step explanation:
Inside the four sided figure, the angles must add to 360. So 121+70+x+y = 360. You also know that a straight line is 180. This means 116 + y = 180. Using them together you can solve for the variables. Begin by substituting the equation 116 + y = 180 into the other equation.
116 + y = 180 converts to y = 180-116 = 64.
Substitute y = 64 into 121 + 70 + x + y = 360.
191 + x + 64 = 360
255 + x = 360
x = 105
